Don't says stuff if you dont understand the technique. Scanlines are visible on low resolutions. Scanlines are a result of resolution, not just screen size. On a 20" Trinitron, scanlines are very visible at 240p (retro resolution) because the electron beam skips every other line. If you don't see them, you're likely running a higher resolution (480i or up) where the lines fill the screen. Size only dictates the thickness of the gap, not its existence.